A200 Overruns
Submitted by bcmike on Thu, 04/03/2008 - 12:50pm.
Here is the problem; I have an A200D installed in a production machine and it is producing overruns
eth1 Link encap:Ethernet HWaddr 00:D0:B7:C8:E0:CB
inet addr:192.168.0.15 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::2d0:b7ff:fec8:e0cb/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6127 errors:7 dropped:0 overruns:0 frame:7
TX packets:7420 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2387556 (2.2 MiB) TX bytes:2293135 (2.1 MiB)
w1g1 Link encap:Point-to-Point Protocol
UP POINTOPOINT RUNNING NOARP MTU:8 Metric:1
RX packets:1068541 errors:0 dropped:0 overruns:8 frame:8
TX packets:1068541 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:8548328 (8.1 MiB) TX bytes:8548328 (8.1 MiB)
Interrupt:193 Memory:f89c0000-f89c1fff
These overruns escalate continuously. I am also noticing errors on the Nics which may or may not be related.
The sangoma card currently uses IRQ 4, and nothing else shares it. The nics are on IRQ 11 and IRQ 8.
I am running Trixbox 2.2.4
Kernel: 2.6.9-34.0.2.ELsmp (we have tried with apic=on acpi=on)
Wanrouter Version: WANPIPE Release: 3.2.1
The machine is a Dell Poweredge 2600, with one 1.8 gz Xeon and 1GB of Ram. One Intel nic resides on the PCI bus
The machine is in production and calls are being lost, so any help would be appreciated.
Thank You.
Have you seen this?
Mon, 04/07/2008 - 7:12am
From Konrad - 11/1/07 8:00 AM
If you are seeing increasing "overruns" when you run "ifconfig" and you have audio quality issues, check whether or not your system is using XT-PIC or IO-APIC. You can check this by running the command "cat /proc/interrupts". XT-PIC is an older interrupt controller that can't always handle the number of interrupts generated by real-time communications.
For Trixbox 2.2.3
You need to put ACPI=ON APIC=ON at the end of the title line
title CentOS-4 i386 (2.6.9-34.0.2.ELsmp)
root (hd0,0)
kernel /vmlinuz-2.6.9-34.0.2.ELsmp ro root=LABEL=/1 acpi=on apic=on
initrd /initrd-2.6.9-34.0.2.ELsmp.img
Done that
Mon, 04/07/2008 - 7:36am
Thanks, yes I did see that article and have applied the kernel arguments with no affect. It was IO-APIC before anyway.
I think I may have narrowed it down a bit. This machine runs a PERC 4 raid controller, and it looks like the perfomance in Linux is pretty dismal, perhaps it is not keeping up?
Hello,
I am a tech support
Tue, 04/08/2008 - 12:25pm
Hello,
I am a tech support engineer for Sangoma. I would recommend that you run the test at the following link to test if your system is configured optimally: http://wiki.sangoma.com/wanpipe-linux-asterisk-appendix#overruns This test checks whether your system is properly configured to transfer the amount of data generated by a Sangoma card.
If you have any questions please email me at flara@sangoma.com
Thank-you,
Francisco Lara, B.ENG Software Engineer/Tech Support
Sangoma Technologies Inc. | 50 McIntosh Drive, Suite 120, Markham ON L3R 9T3 Canada
t. 1 905 474 1990 x 123 | e. flara@sangoma.com msn. laraf@live.com
Member Since:
2007-02-05